I'm not an atheist, yet I almost always agree with with the arguments of atheists short of them denying the existence of God, and the possible lack of a need to operate under the assumption of objective morality. As far as I can tell, atheists are correct about the material nature of our consciousness, following from that the lack of free will due to causality's grip over everything in existence, and the lack of a perceivable afterlife, but the absence of God doesn't really follow from any of that. I suppose they (somewhat justifiably) assume that people who assert the existence of God are using it to cope with their lives, not necessarily as a means by which to understand the world.
However I also think that atheism has negative consequences in store for any society which would embrace it, if you tell people that their actions don't matter, that they are doomed to a finite existence, some of them might believe you and end up taking it the wrong way. At the very least, I find it irresponsible to believe that pain doesn't matter, that the feelings of others are irrelevant. Atheism encourages the sort of apathy and degeneracy which is currently plaguing western society, and for all these reasons I won't endorse it, nevermind that I fully believe them to be wrong in regards to their main argument.
This is an excellent point, I don't think most actually grasp what it is that they're arguing over.